package com.github.cchao.touchnews.util;

import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

import com.github.cchao.touchnews.BaseApplication;

/**
 * Created by cchao on 2016/4/7.
 * E-mail:   cchao1024@163.com
 * Description:网络相关的工具类
 */

public class NetUtil
{
        private NetUtil()
        {
		/* cannot be instantiated */
                throw new UnsupportedOperationException("cannot be instantiated");
        }

        /**
         * 判断网络是否连接
         *
         * @return s
         */
        public static boolean isConnected()
        {

                ConnectivityManager connectivity = (ConnectivityManager) BaseApplication.getContext ( )
                        .getSystemService(Context.CONNECTIVITY_SERVICE);

                if (null != connectivity)
                {

                        NetworkInfo info = connectivity.getActiveNetworkInfo();
                        if (null != info && info.isConnected())
                        {
                                if (info.getState() == NetworkInfo.State.CONNECTED)
                                {
                                        return true;
                                }
                        }
                }
                return false;
        }

        /**
         * 判断是否是wifi连接
         */
        public static boolean isWifi(Context context)
        {
                ConnectivityManager cm = (ConnectivityManager) context
                        .getSystemService(Context.CONNECTIVITY_SERVICE);

                if (cm == null)
                        return false;
                return cm.getActiveNetworkInfo().getType() == ConnectivityManager.TYPE_WIFI;

        }

        /**
         * 打开网络设置界面
         */
        public static void openSetting(Activity activity)
        {
                Intent intent = new Intent("/");
                ComponentName cm = new ComponentName ("com.android.settings",
                        "com.android.settings.WirelessSettings");
                intent.setComponent(cm);
                intent.setAction("android.intent.action.VIEW");
                activity.startActivityForResult(intent, 0);
        }

}
